The procedure is called the Epley manoeuvre, it's safe, and you can do it at home yourself. It's believed to cure 80+% of vertigo-symptom cases and is more effective than meds in many cases.

This is a link to a print out of the exercises:

http://www.ncuh.nhs.uk/our-services/...uick-guide.pdf

Give them a go as soon as you can - you might experience some dizziness while doing them, so have someone with you first time if you can. It really does help.

Good luck and let us know how you get on!

Bram.